Classifications

• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C37/00—Control of fire-fighting equipment
  • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
  • A62C37/10—Releasing means, e.g. electrically released
  • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
  • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C37/00—Control of fire-fighting equipment
  • A62C37/04—Control of fire-fighting equipment with electrically-controlled release
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C31/00—Delivery of fire-extinguishing material
  • A62C31/28—Accessories for delivery devices, e.g. supports
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62C—FIRE-FIGHTING
  • A62C37/00—Control of fire-fighting equipment
  • A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment

Definitions

• the present invention relates to the field of fire fighting equipment, in particular, to thermal locks of sprinkler sprinklers, and is intended to provide opening of sprinklers and automatic start of fire fighting.
• the prototype of the invention is a thermal lock capsule, known from a fire protection device (US patent N ° US 2004/0194976 "Fire protection device”).
• the known device contains a thermal lock capsule made of a glass case filled with liquid.
• the housing is connected to the sensor to determine its condition.
• the sensor includes an electric wire partially located inside the cavity of the glass case. The electric wire is connected to the line of the control and monitoring unit.
• the disadvantage of the prototype is the low reliability of the state control.
• the disadvantage of the prototype is due to the possibility of “non-destruction” of the state sensor, for example, due to “souring” of the junction of the wire with the line of the control and monitoring unit with a long duration of operation of the thermal lock.
• the aim of the invention is to increase the reliability of monitoring the state of the sprinkler.
• a bursting capsule for a thermal lock comprising a body made of brittle material, comprising a sealed cavity filled with liquid, and a state sensor including an electrical conductor partially located inside
• SUBSTITUTE SHEET (RULE 26) body cavities, an electrical conductor located inside the body cavity is divided into two parts, the ends of each of the parts being in contact with the liquid, and the applied liquid has electrically conductive properties.
• capsules for thermal lock are provided.
• the applied liquid has a resistance that ensures that it flows to a boiling point when an electric current flows;
• the free ends of the electrical conductor located inside the cavity of the housing are equipped with heating elements;
• the free ends of the electrical conductor located inside the cavity of the housing are equipped with elements that increase the area of contact with the liquid;
• the free ends of the heating elements are equipped with elements that increase the area of contact with the liquid.
• the electrical conductor located inside the cavity of the housing is divided into two parts - sign 1.
• the applied liquid has electrically conductive properties - sign 3.
• the applied liquid has a resistance that ensures that it flows to a boiling point when an electric current flows - sign 4.
• the free ends of the electrical conductor located inside the cavity of the housing are equipped with heating elements - sign 5.
• the free ends of the electrical conductor located inside the cavity of the housing are equipped with elements that increase the contact area - sign 6.
• the free ends of the heating elements are equipped with elements that increase the contact area - sign 7.
• SUBSTITUTE SHEET (RULE 26) parts of the electrical conductor located inside the housing are in contact with the liquid (feature 2), and the applied fluid has electrically conductive properties (feature 3) allows you to increase the reliability of monitoring the state of the thermal lock, because when the capsule is destroyed due to the thermal effect of the fire, a conductive liquid, which is an element of the state control circuit, flows out of the capsule cavity, and the state control circuit breaks. However, there is no effect of "non-destruction" of the state sensor.
• the equipment of the free ends of the electric conductor located inside the housing cavity with heating elements allows the use of a lock state detection sensor for forcing a thermal lock into action.
• Equipping the free ends of the heating elements with elements that increase the area of contact with the liquid (feature 7) can reduce the transition resistance between the free ends of the heating elements.
• the sketch shows a sectional view of a capsule for a thermal lock.
• the capsule consists of a housing (1), the inner cavity of which is filled with an electrically conductive liquid (2). Inside the cavity, in contact with the liquid, the free ends (3) and (4) of the electrical conductor of the state sensor are placed.
• the free ends (3) and (4) are equipped with heating elements (5) and (6) in the form of a spiral. At the free ends of the heating elements are elements in the form of balls (7) and (8), which increase the area of contact with the liquid.
• SUBSTITUTE SHEET (RULE 26) The capsule works as follows. In standby mode, the current in the lock state control circuit flows through parts of the conductor and through the conductive fluid. When a fire focus occurs in the area of a thermal lock, it heats up, liquid boils and the capsule body breaks down.
• Destruction of the capsule leads to leakage of the electrically conductive fluid and, as a result, to the breaking of the lock state control circuit.
• An open circuit indicates the operation of this lock.
• a voltage signal is supplied to the state control circuit, which ensures through heating elements the heating of the electrically conductive liquid to the boiling point of the liquid with which the capsule is filled. After this, the capsule is destroyed and the lock is opened.

Landscapes

• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Fire-Detection Mechanisms (AREA)
• Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=61976849

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (4)

Citations (4)

Family Cites Families (10)

• 2016
  • 2016-11-10 RU RU2016144266A patent/RU2651422C1/ru active
• 2017
  • 2017-11-03 WO PCT/RU2017/000826 patent/WO2018088937A1/ru unknown
  • 2017-11-03 CN CN201780083020.1A patent/CN110177603B/zh active Active
  • 2017-11-03 US US16/349,037 patent/US11331522B2/en active Active
  • 2017-11-03 EP EP17868583.0A patent/EP3539621A4/de active Pending

Patent Citations (4)

Non-Patent Citations (1)

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